- malfunctioning, nonfunctional - not performing or able to perform its regular function; "a malfunctioning valve"
Antonyms: functioning, running, operative, functional, working, up
- malfunction, misfunction - fail to function or function improperly; "the coffee maker malfunctioned"
--1 is one way to fail, go bad, give way, die, give out, conk out, go, break, break down
Antonyms: function, work, operate, go, run
Sample sentence:Derived form: noun malfunction1
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